基于绿色化学理念的苯甲醛与安息香的相互转化

引用本文: 杜欣, 王天泽, 陈渡文, 于景成, 沙广燕. 基于绿色化学理念的苯甲醛与安息香的相互转化[J]. 大学化学, 2020, 35(4): 19-26. doi: 10.3866/PKU.DXHX201911006 shu

Citation: Xin Du, Tianze Wang, Duwen Chen, Jingcheng Yu, Guangyan Sha. Mutual Conversion between Benzaldehyde and Benzoin Based on the Idea of Green Chemistry[J]. University Chemistry, 2020, 35(4): 19-26. doi: 10.3866/PKU.DXHX201911006 shu

基于绿色化学理念的苯甲醛与安息香的相互转化

大连理工大学基础化学实验中心, 辽宁大连 116023

摘要: 为了在基础教学实验中引入绿色化学理念以及强化氧化还原反应操作，本文设计了苯甲醛和安息香的相互转化实验：以苯甲醛为原料经维生素B₁催化得到安息香，再用硼氢化钠还原安息香得到二苯乙二醇，二苯乙二醇用新型绿色催化剂NaMnO_x氧化回到苯甲醛。通过氢核磁共振（¹H NMR）对氧化还原反应的产物结构进行了鉴定，液相色谱分析结果表明氧化反应转化率达到90%以上。通过这一循环转化反应的实现，一方面树立了学生的绿色化学理念，另一方面加强了氧化及还原反应的操作训练，在进一步锻炼学生实验能力的同时，使其对化学反应的认知与评价更加完整。

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English

Mutual Conversion between Benzaldehyde and Benzoin Based on the Idea of Green Chemistry

Experiment Center of Chemistry, Dalian University of Technology, Dalian 116023, Liaoning Province, P. R. China
Received Date: 04 November 2019

Abstract: In order to bring the concept of green chemistry into basic laboratory teaching and to enhance the exercise on redox reactions, we designed an experiment about the mutual conversion between benzoin and benzaldehyde. In this experiment, benzaldehyde is catalyzed by Vitamin B₁ to be converted to benzoin, then benzoin is reduced with sodium borohydride into 1,2-diphenyl glycol. Afterwards, the product will be oxidated into benzaldehyde under the catalyzing of new green catalyst NaMnO_x. ¹H NMR was used to authenticate the product in each step of the experiment, and the yield of the oxidation reaction is greater than 90% with HLPC measurement. By completing this cyclic conversion reaction, we conveys the idea of green chemistry to the students, and the students get practice on operating the redox reaction. At the same time, students' cognition and evaluation of chemical reaction can be more complete.

Key words:

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基于绿色化学理念的苯甲醛与安息香的相互转化

English

Mutual Conversion between Benzaldehyde and Benzoin Based on the Idea of Green Chemistry

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

基于绿色化学理念的苯甲醛与安息香的相互转化

English

Mutual Conversion between Benzaldehyde and Benzoin Based on the Idea of Green Chemistry

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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